The Samsung Android Modem Device Driver (MSS Ver. 3)—specifically referring to the ssudbus.sys driver—is a legacy software component that allows Windows computers to communicate with Samsung mobile devices as modems. This driver is essential for tethering mobile data to a PC or using advanced flashing tools like Odin. Core Functionality
Data Tethering: Enables your computer to use your Samsung phone's cellular network for internet access via a USB cable.
Device Communication: Provides the interface for Windows to recognize the device for data transfers, backups, and software development.
Flashing & Recovery: Facilitates connection during Download Mode, which is required for firmware updates or manual system recovery using tools like Odin. Technical Specifications
Samsung Android Modem Device Driver -MSS Ver.3- (often associated with the ssudbus.sys ssudmdm.sys
files) is a core component of the Samsung USB Driver for Mobile Phones. It primarily enables communication between a Windows PC and a Samsung device for tasks like data transfer, firmware flashing, and USB tethering. Microsoft Learn Key Features and Functions Device Connectivity
: Acts as a bridge to allow Windows to recognize Samsung devices in various modes, including (Media Transfer Protocol) for file management and (Android Debug Bridge) for developer tasks. Modem & Tethering Support : Essential for using your phone as a (tethering) to provide internet access to a PC. Flashing Utilities : A vital requirement for software like , used to restore or update device firmware.
The Samsung Android Modem Device Driver -MSS Ver.3- refers to a specific driver version used to enable Windows PCs to communicate with Samsung mobile devices as modems or composite USB devices. This driver is essential for tasks like using your phone for USB tethering, flashing firmware via Odin, or executing AT commands through software like Realterm. Where to Find and Download
For the most reliable and safe installation, it is recommended to use official sources rather than third-party driver sites:
Official Samsung Developer Portal: You can download the latest official Samsung Android USB Driver directly. This package usually includes the modem, MTP, and ADB drivers.
Samsung Download Centre: Visit the Samsung Download Center and search for your specific mobile model code to find tailored drivers and software updates.
Windows Update: Windows often offers these drivers as "Optional Updates." Check your Windows Update settings if the device isn't automatically recognised. Troubleshooting Installation Issues samsung android modem device driver -mss ver.3-
If your computer fails to recognize the modem or displays a "Code 31" error, try these common community-verified fixes:
Registry Edit: Some users resolve MTP/Modem installation errors by navigating to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\ in the Registry Editor, finding the Portable Devices key, and deleting the UpperFilters value.
Driver Recovery via Software: If you have Samsung Kies installed, you can use the Driver Recovery tool under the top-left menu to force a reinstallation of all necessary phone-to-PC drivers.
Manual Install via Device Manager: Download the driver package, then use the "Add legacy hardware" or "Update driver" option in Windows Device Manager to point directly to the extracted folder. Key Uses for This Driver
Odin Flashing: Required for the ID:COM port to turn blue, indicating a stable connection for flashing stock firmware.
ADB Interface: Enables developers to use the Android Debug Bridge for app testing and advanced system modifications.
Modem Functions: Allows the PC to use the phone's mobile data connection via a USB cable. Update software, apps, and drivers on your Samsung PC
The Samsung Android Modem Device Driver -MSS Ver.3- (often associated with the file ssudmdm.sys) is a critical software component developed by DEVGURU Co., LTD. that allows a Windows PC to communicate with the modem hardware of a Samsung smartphone or tablet. Core Functionality
Modem Communication: This driver specifically handles data communication protocols, allowing your computer to recognize the Samsung device as a modem.
USB Connectivity: It is part of the broader Samsung USB Driver for Mobile Phones package required for tasks like data transfer, firmware updates, and USB tethering.
Developer Support: It enables advanced functions for developers, such as debugging via the Android Debug Bridge (ADB) or flashing firmware using tools like ODIN. Key Components & Technical Details Feature Associated File The Samsung Android Modem Device Driver (MSS Ver
ssudmdm.sys (Modem Driver) and ssudbus.sys (Composite Device Driver) Developer DEVGURU Co., LTD. Location
Typically found in C:\Program Files (x86)\Samsung\USB Drivers\ Common Service
Often runs as the MSS CS Connectivity Service (ss_conn_service.exe) Common Issues and Solutions
Compatibility Errors: Users frequently encounter this driver in Windows 11 "Memory Integrity" warnings, where it may be flagged as an incompatible driver.
System Stability: Outdated versions of this driver have been linked to Blue Screen of Death (BSOD) errors, such as VIDEO_DXGKRNL_FATAL_ERROR. Troubleshooting Steps:
Update: Download the latest version from the Samsung Developer Portal to resolve bugs.
Uninstall: If you no longer use a Samsung device or experience crashes, you can remove it via Control Panel > Uninstall a program.
Manual Removal: For persistent "Memory Integrity" issues, you can locate the file in C:\Windows\System32, rename it to .old, and restart your PC. Video DXGKRNL Fatal Error - Microsoft Q&A
| Module Name | Function |
|-------------|----------|
| sipc_modem.ko | Core IPC handling, link control |
| mss_modem.ko | MSS-specific operations, power management |
| modem_ctrl.ko | Modem boot, reset, crash recovery |
| modem_pm.ko | Sleep/resume sequencing |
| Feature | Detail |
| :--- | :--- |
| Driver Type | Kernel-Mode Driver (WDM) |
| Interface | USB (Universal Serial Bus) |
| Protocol | RNDIS (encapsulates Ethernet frames over USB) |
| OS Support | Windows 10, Windows 11, Windows Server 2016+ |
| Hardware ID Example | USB\VID_04E8&PID_6863&MI_00 (varies by device model) |
// samsung_mss_v3_diag.c // Mock interface for MSS v3 modem diagnostics (Linux TTY/IPC)#include <stdio.h> #include <stdlib.h> #include <string.h> #include <fcntl.h> #include <unistd.h> #include <termios.h> #include <sys/ioctl.h> void mss_read_response(char *buf, size_t len) ssize_t n =
#define MSS_DEVICE "/dev/mss_v3_modem" #define MSS_IOCTL_GET_VERSION _IOR('M', 1, int) #define MSS_IOCTL_SEND_URC _IOW('M', 2, char*) #define MSS_IOCTL_RESET _IO('M', 3)
int mss_fd = -1;
int mss_open() mss_fd = open(MSS_DEVICE, O_RDWR
void mss_get_version() int version; if (ioctl(mss_fd, MSS_IOCTL_GET_VERSION, &version) == 0) printf("MSS version 3.x — sub-version: %d\n", version); else perror("Version query failed");
void mss_send_command(const char *cmd) if (write(mss_fd, cmd, strlen(cmd)) != (ssize_t)strlen(cmd)) perror("Write to modem failed");
void mss_read_response(char *buf, size_t len) ssize_t n = read(mss_fd, buf, len - 1); if (n > 0) buf[n] = '\0'; printf("Modem MSS v3 reply: %s\n", buf);
int main() { if (mss_open() < 0) return 1;
mss_get_version(); mss_send_command("AT+CRESET\r\n"); mss_read_response((char[128]){}, 128); close(mss_fd); return 0;
}
BetterBatteryStats to see modem_ipc_wake – often caused by network paging.SM-S906B_OSE_12.zip).clang-14 or aarch64-linux-android-4.9.modem.bin, mss_data.bin).// For a hypothetical kernel driver controlling MSS v3
static long mss_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
switch (cmd)
case MSS_IOCTL_GET_VERSION:
return put_user(3, (int __user *)arg);
case MSS_IOCTL_RESET:
// Trigger MSS firmware reload / boot
writel(0x1, modem_reset_reg);
break;
return 0;
The driver interacts with:
When you check dmesg | grep -i mss, a typical output might be:
[ 3.451234] samsung android modem device driver -mss ver.3- (c) 2018 Samsung Electronics
[ 3.451567] mss: modem boot mode = NORMAL
[ 3.452001] mss: link type = SHMEM, ipc ver = SIPC5